"Stop 0xc000021e" Installing Service Pack 4 with LapLink Installed

This article was previously published under Q196847
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When you install Windows NT 4.0 Service Pack 4 on a computer with LapLink7.5 or LapLink Professional by Traveling Software installed, Autochk.exemay stop responding (hang) for approximately two minutes, and you may thenreceive the following error message:
STOP: c000021e (Cancel Timeout) The driver \driver\TSIKBFD failed to complete a cancelled I/O request in the allotted time.
This behavior occurs because Autochk.exe generates keyboard read requeststhat are not handled properly by Tsikbfd.sys, which is a LapLink keyboardfilter driver file. When Autochk.exe quits, it attempts to clean up theremaining requests, but Tsikbfd.sys does not respond to the cancelrequests.
To work around this issue, download the updated Tsikbfd.sys file from thefollowing Traveling Software Web site:


Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
To resolve this problem, obtain the latest service pack for Microsoft Windows NT version 4.0. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
This problem was first corrected in Windows NT 4.0 Service Pack 5.
For more information about this issue, visit the following TravelingSoftware web site:


The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Article ID: 196847 - Last Review: 10/11/2013 15:57:09 - Revision: 1.3

Microsoft Windows NT Server 4.0 Standard Edition, Microsoft Windows NT Workstation 4.0 Developer Edition, Microsoft Windows NT Server 4.0 Enterprise Edition

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